I am creating a simple app with a WebView basing on this tutorial.
I would like to display a progress indicator while loading the page, but the methods didStartProvisionalLoadForFrame and didFinishLoadForFrame are never called. What am I doing wrong?
ViewController.swift
import Cocoa
import WebKit
class ViewController: NSViewController {
#IBOutlet weak var webView: WebView!
#IBOutlet weak var webViewProgressIndicator: NSProgressIndicator!
let messengerUrl = "https://www.messenger.com/"
override func viewDidLoad() {
super.viewDidLoad()
self.webView.mainFrame.loadRequest(NSURLRequest(URL: NSURL(string: messengerUrl)!))
}
override var representedObject: AnyObject? {
didSet {
// Update the view, if already loaded.
}
}
func webView(sender: WebView!, didStartProvisionalLoadForFrame frame: WebFrame!)
{
self.webViewProgressIndicator.startAnimation(self)
}
func webView(sender: WebView!, didFinishLoadForFrame frame: WebFrame!)
{
self.webViewProgressIndicator.stopAnimation(self)
}
}
I am using Xcode 7 Beta and OS X 10.11 Beta.
Rich's answer works on Xcode 7.0.1 ElCaptain Swift2
BUT I had to connect it in the connections inspector as Swift2 did not accept
self.view.frameLoadDelegate = self
as it gave the following error
Cannot assign a value of type 'ViewController' to a value of type
'WebFrameLoadDelegate!'
So as long as you connect it up as follows, all works great.
The tutorial missed out something, Need to add:
self.webView.frameLoadDelegate = self
(can be done in connections inspector)
then call the load..
self.webView.mainFrame.loadRequest(NSURLRequest(URL: NSURL(string: messengerUrl)!))
Also add the WebFrameLoadDelegate interface to your ViewController.. (thanks tjv)
class ViewController: NSViewController, WebFrameLoadDelegate{ .....
You need to assign the delegate of your UIWebview ie: webview.delegate = self
Related
I'm trying to build a very simple app just to see how the UISlider works. I've seen several tutorials and followed them to the letter but nothing seems to work.
I keep getting this error exactly when I try to move the Slider in the simulator, after I've successfully built
This is my whole code. It's really simple but I can't understand why the Slider won't work.
import UIKit
class ViewController: UIViewController {
#IBOutlet weak var noteBottomLabel: UILabel!
#IBOutlet weak var sliderNoteBottom: UISlider!
#IBAction func changedSliderNoteBottom(sender: AnyObject) {
var noteBottomValue = Int(sliderNoteBottom.value)
noteBottomLabel.text = "\(noteBottomValue)"
}
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
Can you see any problems with this? I'm probably noobing out, but I've looked everywhere and can't find an explanation
import UIKit
import CoreFoundation
class ViewController2 : UIViewController {
override func viewDidLoad() {
super.viewDidLoad();
}
#IBOutlet weak var slider: UISlider!
#IBAction func slidervaluechanged(sender: UISlider) {
print(Int(slider.value))
}
}
I have tried your code just made the print of slider.value rather than putting it on label .
But I have used Xcode 7.3 , I don't think this should be problem with Xcode .Use the sender as UISlider when making an #IBAction that looks better . Brings up the value of 0 at bottom and 1 at top.
I'm trying to learn swift code for mac OSX but there isn't much tutorials for it as ios. and i have been struggling already with closing or dismissing the view controller when i launch through a button another connected view controller
class ViewController: NSViewController {
#IBOutlet weak var username: NSTextField!
#IBOutlet weak var password: NSTextField!
#IBAction func login(sender: AnyObject) {
}
#IBAction func signUp(sender: AnyObject) {
}
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
}
override var representedObject: AnyObject? {
didSet {
// Update the view, if already loaded.
}
}
}
I tried to add [self dismissModalViewControllerAnimated:YES]; to dismiss it but it doesn't work it only shows errors. if anybody could point me to somewhere i can get more information or what i'm doing wrong?
Use
dismissViewController(self)
to dismiss the presented view controller.
About dismissViewController: from the NSViewController docs:
Dismisses a presented view controller, using the same animator that presented it.
and
In OS X, this is the universal way to dismiss a view controller, no matter how it was presented.
I am new to Mac OSX and with Apple promoting the fact that the bodies of code are becoming similar decided to tell the folk I am writing code for we should be able to do a Mac OSX version. iPhone and iPad versions are all good and about to release second version so no issues there.
So I am subclassing NSWindowController to get access to the Toolbar and worked out how to remove and add items on the toolbar, but for the life of me I can not get one NSViewController (firstViewController) to dismiss and bring up the second NSViewController (secondViewController) in the same NSWindowController.
So the 2 issues are that
1. I want to be able to performSegueWithIdentifier from the first NSViewController in code and
2. bring up the second NSViewController by replacing the first NSViewController in the same NSWindowController.
If I add a button to the firstViewController and put a segue to the secondViewController then when I select the button the secondViewController comes up just fine but in a seperate window not the same NSWindowController that I want it to and the firstViewController does not get replaced but stays in the NSWindowController.
So I know the segue idea will work but its not working in code and when I do insert the segue from a button it works but into a seperate NSViewController that is not part of the NSWindowController.
I am trying to find some programming guide from Apple on the issue but no luck so far.
Here is an overview from my Storyboard:
Here is my NSWindowController subclassed and the func loginToMe2Team is trigger from the NSToolBar and its working just find as the print statements show up on the console.
import Cocoa
class me2teamWindowsController: NSWindowController {
#IBOutlet var mySignUp : NSToolbarItem!
#IBOutlet var myToolbar : NSToolbar!
let controller = ViewController()
override func windowDidLoad() {
super.windowDidLoad()
print("window loaded")
}
override func windowWillLoad() {
print("window will load")
}
#IBAction func logInToMe2Team(sender: AnyObject){
controller.LogIn() //THIS IS THE FUNC I AM TESTING WITH
}
#IBAction func signUpToMe2Team(sender: AnyObject){
controller.signUp()
}
Here is my NSViewController subclassed with the func LogIn. Its getting selected just fine but the performSegueWithIdentifier is not. And I did cut and past the Identifier to make absolutely sure it was the same.
import Cocoa
import WebKit
class ViewController: NSViewController {
#IBOutlet weak var theWebPage: WebView!
#IBOutlet weak var progressIndicator: NSProgressIndicator!
override func viewDidLoad() {
super.viewDidLoad()
let urlString = "https://thewebpage.com.au"
self.theWebPage.mainFrame.loadRequest(NSURLRequest(URL: NSURL(string: urlString)!))
}
override func viewDidAppear() {
}
func LogIn() {
print("I logged in")
self.performSegueWithIdentifier("goToTeamPage", sender: self)
//THIS IS THE BIT THATS NOT WORKING
}
func signUp() {
print("I have to sign up now")
}
override var representedObject: AnyObject? {
didSet {
}
}
func webView(sender: WebView!, didStartProvisionalLoadForFrame frame: WebFrame!)
{
self.progressIndicator.startAnimation(self)
}
func webView(sender: WebView!, didFinishLoadForFrame frame: WebFrame!)
{
self.progressIndicator.stopAnimation(self)
}
}
You need to use a custom segue class (or possibly NSTabViewController if it’s enough for your needs). Set the segue’s type to Custom, with your class name specified:
…and implement it. With no animation, it’s simple:
class ReplaceSegue: NSStoryboardSegue {
override func perform() {
if let src = self.sourceController as? NSViewController,
let dest = self.destinationController as? NSViewController,
let window = src.view.window {
// this updates the content and adjusts window size
window.contentViewController = dest
}
}
}
In my case, I was using a sheet and wanted to transition to a different sheet with a different size, so I needed to do more:
class ReplaceSheetSegue: NSStoryboardSegue {
override func perform() {
if let src = self.sourceController as? NSViewController,
let dest = self.destinationController as? NSViewController,
let window = src.view.window {
// calculate new frame:
var rect = window.frameRectForContentRect(dest.view.frame)
rect.origin.x += (src.view.frame.width - dest.view.frame.width) / 2
rect.origin.y += src.view.frame.height - dest.view.frame.height
// don’t shrink visible content, prevent minsize from intervening:
window.contentViewController = nil
// animate resizing (TODO: crossover blending):
window.setFrame(window.convertRectToScreen(rect), display: true, animate: true)
// set new controller
window.contentViewController = dest
}
}
}
I'm new to Swift and Mac App.
So I'm writing an Mac App today and I still confuse how to access an IBOutlet from another class after searching a lot.
I'm using StoryBoard and there are two NSTextField path mirror in my ViewController.
I have created a custom class Path.swift for the first NSTextField path to know when the text in path has changed.
class Path: NSTextField, NSTextFieldDelegate
{
override func drawRect(dirtyRect: NSRect)
{
super.drawRect(dirtyRect)
// Drawing code here.
self.delegate = self
}
var current = ""
override func controlTextDidChange(obj: NSNotification)
{
current = self.stringValue
println("Current is \(current)")
}
}
And there are two outlets defined in ViewController.swift
class ViewController: NSViewController
{
override func viewDidLoad()
{
super.viewDidLoad()
// Do any additional setup after loading the view.
}
override var representedObject: AnyObject? {
didSet {
// Update the view, if already loaded.
}
}
#IBOutlet weak var path: NSTextField!
#IBOutlet weak var mirror: NSTextField!
}
And when user type something in the first NSTextField path, I want the second NSTextField mirror shows the same string as path.
I tried to use ViewController().mirror.stringValue = current, but I got fatal error: unexpectedly found nil while unwrapping an Optional value
After googling a lot, I knew that I have created a new instance of ViewController instead of accessing the current existing instance of ViewController.
So my question is how I can access the IBOutlet in ViewController.swift from Path.swift class (how to access the current existing instance of ViewController).
Any help will be greatly appreciated.
Thanks in advance.
I am new in OSX developing and i am new in Swift. I want to write simple app with WebView.
I can load url, but I need to catch event when, WebView end loading content.
it's my app delegate.swift file:
import WebKit
class AppDelegate: NSObject, NSApplicationDelegate{
#IBOutlet weak var window: NSWindow!
#IBOutlet var webview: WebView!
func applicationDidFinishLaunching(aNotification: NSNotification?) {
let url = NSURL(string: "google.com")
let request = NSURLRequest(URL: url);
webview.mainFrame.loadRequest(request);
}
func applicationWillTerminate(aNotification: NSNotification?) {
}
}
and i try to make WebFrameLoad delegate class:
import WebKit
class WebViewControllerDelegate: WebFrameLoadDelegate{
#IBOutlet var webview: WebView!
override func didFinishLoadForFrame()
{
println("ok:");
}
}
It doesn't work. And also i don't know how to set this Delegate to my WebView.
TY for answers.
Generally speaking the WebViewControllerDelegate would be the class to have the webView as a property.
Move this code:
#IBOutlet var webview: WebView!
let url = NSURL(string: "google.com")
let request = NSURLRequest(URL: url)
self.webview.mainFrame.loadRequest(request)
to your WebViewControllerDelegate
You then also need to set the delegate for the WebView in your WebViewControllerDelegate
self.webView.delegate = self
If you don't set this, then the system will not call the delegate methods for you.
Finally you need to ensure that your class conforms to the WebFrameLoadDelegate protocol (which you have already done).
class WebViewControllerDelegate: WebFrameLoadDelegate{
The above means that you have a viewController which has a webView property, is conforming to the correct delegate protocol, and is itself the delegate for the webView.
Delegate methods defined inside the WebViewControllerDelegate will then be called for you.